English is not my native language so I had to look up what limp wrist means online and that's what i found:

limp wrist

(1)a male with femine qualites and a sexual desire to be with other men; gay; homosexual; fag; fruit cake; fudgepacker (2)refers to when a gay male's wrist falls limp and forms a 90 degree angle with a verticle forearm, often times an involuntary movement occuring while in conversation.